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[PMID]: 24197672
[Au] Autor:Shiraishi M; Morita H; Muramatsu K; Sato A; Nitta J; Yamaguchi A; Adachi H
[Ad] Address:Division of Cardiovascular Surgery, Saitama Red-cross Hospital, 8-3-33 Kamiochiai, Chyuo-ku, Saitama, Saitama, 338-8553, Japan, manabu@omiya.jichi.ac.jp.
[Ti] Title:Successful non-operative management of left atrioesophageal fistula following catheter ablation.
[So] Source:Surg Today;44(8):1565-8, 2014 Aug.
[Is] ISSN:1436-2813
[Cp] Country of publication:Japan
[La] Language:eng
[Ab] Abstract:Atrioesophageal fistula (AEF) is a potentially lethal complication of catheter radiofrequency ablation for atrial fibrillation. A 49-year-old man with paroxysmal atrial fibrillation who underwent catheter ablation around the pulmonary vein was admitted 31days after the procedure, suffering seizures and fever. Magnetic resonance imaging of the brain showed ischemia and multiple lesions of acute infarction in the right occipital lobe of the cerebrum. Computed tomography (CT) of the chest showed a small accumulation of air between the posterior left atrium and the esophagus, suggesting an AEF. Endoscopic snaring of the esophageal mucosa, repeated a few times, supported by nil by mouth and antibiotic therapy, resulted in improvement of his condition with no recurrence of symptoms. Subsequent chest CT scans confirmed disappearance of the leaked air and the patient was discharged home 45days after admission with no neurological compromise.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1407
[Js] Journal subset:IM
[St] Status:In-Data-Review
[do] DOI:10.1007/s00595-013-0744-9

  2 / 258326 MEDLINE  
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[PMID]: 23681599
[Au] Autor:Ouchi A; Isogai M; Harada T; Kaneoka Y; Kamei K; Maeda A
[Ad] Address:Department of Surgery, Ogaki Municipal Hospital, 4-86 Minaminokawa-cho, Ogaki, Gifu, 503-8502, Japan, akioct9@yahoo.co.jp.
[Ti] Title:Duodenal ulcer penetration into the superior mesenteric artery after percutaneous transluminal angioplasty and stent placement for acute mesenteric ischemia: report of a case.
[So] Source:Surg Today;44(8):1552-5, 2014 Aug.
[Is] ISSN:1436-2813
[Cp] Country of publication:Japan
[La] Language:eng
[Ab] Abstract:A 78-year-old male presented with the chief complaints of abdominal pain and vomiting. Contrast-enhanced computed tomography and abdominal angiography showed occlusion of the superior mesenteric artery due to thrombosis, and emergency percutaneous transluminal angioplasty and stent placement were carried out. Two months later, stent thrombosis developed, and a second stent was placed. Eight months later, he complained of general fatigue and anorexia. Gastrointestinal endoscopy revealed a duodenal ulcer at the third portion close to the superior mesenteric artery. Thirteen days after conservative management, duodenal ulcer penetration into the superior mesenteric artery with subsequent air embolism developed, and the patient died of multiple organ failure.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1407
[Js] Journal subset:IM
[St] Status:In-Data-Review
[do] DOI:10.1007/s00595-013-0557-x

  3 / 258326 MEDLINE  
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[PMID]: 24796955
[Au] Autor:Tomiyama Y; Araki F; Oono T; Hioki K
[Ad] Address:Graduate School of Health Sciences, Kumamoto University, 4-24-1 Kuhonji, Kumamoto, Japan, y.tomiyama.k.u@gmail.com.
[Ti] Title:Three-dimensional gamma analysis of dose distributions in individual structures for IMRT dose verification.
[So] Source:Radiol Phys Technol;7(2):303-9, 2014 Jul.
[Is] ISSN:1865-0341
[Cp] Country of publication:Japan
[La] Language:eng
[Ab] Abstract:Our purpose in this study was to implement three-dimensional (3D) gamma analysis for structures of interest such as the planning target volume (PTV) or clinical target volume (CTV), and organs at risk (OARs) for intensity-modulated radiation therapy (IMRT) dose verification. IMRT dose distributions for prostate and head and neck (HN) cancer patients were calculated with an analytical anisotropic algorithm in an Eclipse (Varian Medical Systems) treatment planning system (TPS) and by Monte Carlo (MC) simulation. The MC dose distributions were calculated with EGSnrc/BEAMnrc and DOSXYZnrc user codes under conditions identical to those for the TPS. The prescribed doses were 76Gy/38 fractions with five-field IMRT for the prostate and 33Gy/17 fractions with seven-field IMRT for the HN. TPS dose distributions were verified by the gamma passing rates for the whole calculated volume, PTV or CTV, and OARs by use of 3D gamma analysis with reference to MC dose distributions. The acceptance criteria for the 3D gamma analysis were 3/3 and 2%/2mm for a dose difference and a distance to agreement. The gamma passing rates in PTV and OARs for the prostate IMRT plan were close to 100%. For the HN IMRT plan, the passing rates of 2%/2mm in CTV and OARs were substantially lower because inhomogeneous tissues such as bone and air in the HN are included in the calculation area. 3D gamma analysis for individual structures is useful for IMRT dose verification.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1407
[Js] Journal subset:IM
[St] Status:In-Data-Review
[do] DOI:10.1007/s12194-014-0266-1

  4 / 258326 MEDLINE  
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[PMID]: 25024418
[Au] Autor:Tafti DK; He L; Nagendra K
[Ad] Address:Department of Mechanical Engineering, Virginia Tech, Blacksburg, VA 24061, USA dtafti@exchange.vt.edu.
[Ti] Title:Large eddy simulation for predicting turbulent heat transfer in gas turbines.
[So] Source:Philos Trans A Math Phys Eng Sci;372(2022), 2014 Aug 13.
[Is] ISSN:1364-503X
[Cp] Country of publication:England
[La] Language:eng
[Ab] Abstract:Blade cooling technology will play a critical role in the next generation of propulsion and power generation gas turbines. Accurate prediction of blade metal temperature can avoid the use of excessive compressed bypass air and allow higher turbine inlet temperature, increasing fuel efficiency and decreasing emissions. Large eddy simulation (LES) has been established to predict heat transfer coefficients with good accuracy under various non-canonical flows, but is still limited to relatively simple geometries and low Reynolds numbers. It is envisioned that the projected increase in computational power combined with a drop in price-to-performance ratio will make system-level simulations using LES in complex blade geometries at engine conditions accessible to the design process in the coming one to two decades. In making this possible, two key challenges are addressed in this paper: working with complex intricate blade geometries and simulating high-Reynolds-number (Re) flows. It is proposed to use the immersed boundary method (IBM) combined with LES wall functions. A ribbed duct at Re=20 000 is simulated using the IBM, and a two-pass ribbed duct is simulated at Re=100 000 with and without rotation (rotation number Ro=0.2) using LES with wall functions. The results validate that the IBM is a viable alternative to body-conforming grids and that LES with wall functions reproduces experimental results at a much lower computational cost.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1407
[Js] Journal subset:IM
[St] Status:In-Data-Review

  5 / 258326 MEDLINE  
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[PMID]: 25019967
[Au] Autor:Sang S; Yin W; Bi P; Zhang H; Wang C; Liu X; Chen B; Yang W; Liu Q
[Ad] Address:State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changping, Beijing, China; Key Laboratory of Surveillance and Early-Warning on Infectious Disease, Chinese Center...
[Ti] Title:Predicting Local Dengue Transmission in Guangzhou, China, through the Influence of Imported Cases, Mosquito Density and Climate Variability.
[So] Source:PLoS One;9(7):e102755, 2014.
[Is] ISSN:1932-6203
[Cp] Country of publication:United States
[La] Language:eng
[Ab] Abstract:INTRODUCTION: Each year there are approximately 390 million dengue infections worldwide. Weather variables have a significant impact on the transmission of Dengue Fever (DF), a mosquito borne viral disease. DF in mainland China is characterized as an imported disease. Hence it is necessary to explore the roles of imported cases, mosquito density and climate variability in dengue transmission in China. The study was to identify the relationship between dengue occurrence and possible risk factors and to develop a predicting model for dengue's control and prevention purpose. METHODOLOGY AND PRINCIPAL FINDINGS: Three traditional suburbs and one district with an international airport in Guangzhou city were selected as the study areas. Autocorrelation and cross-correlation analysis were used to perform univariate analysis to identify possible risk factors, with relevant lagged effects, associated with local dengue cases. Principal component analysis (PCA) was applied to extract principal components and PCA score was used to represent the original variables to reduce multi-collinearity. Combining the univariate analysis and prior knowledge, time-series Poisson regression analysis was conducted to quantify the relationship between weather variables, Breteau Index, imported DF cases and the local dengue transmission in Guangzhou, China. The goodness-of-fit of the constructed model was determined by pseudo-R2, Akaike information criterion (AIC) and residual test. There were a total of 707 notified local DF cases from March 2006 to December 2012, with a seasonal distribution from August to November. There were a total of 65 notified imported DF cases from 20 countries, with forty-six cases (70.8%) imported from Southeast Asia. The model showed that local DF cases were positively associated with mosquito density, imported cases, temperature, precipitation, vapour pressure and minimum relative humidity, whilst being negatively associated with air pressure, with different time lags. CONCLUSIONS: Imported DF cases and mosquito density play a critical role in local DF transmission, together with weather variables. The establishment of an early warning system, using existing surveillance datasets will help to control and prevent dengue in Guangzhou, China.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1407
[Js] Journal subset:IM
[St] Status:In-Data-Review
[do] DOI:10.1371/journal.pone.0102755

  6 / 258326 MEDLINE  
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[PMID]: 25019554
[Au] Autor:Jin ZY; Wu M; Han RQ; Zhang XF; Wang XS; Liu AM; Zhou JY; Lu QY; Kim CH; Mu L; Zhang ZF; Zhao JK
[Ad] Address:Department of Non-communicable Chronic Disease Control, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, Jiangsu, China; Jiangyin Center for Disease Control and Prevention, Jiangyin, Jiangsu, China....
[Ti] Title:Household ventilation may reduce effects of indoor air pollutants for prevention of lung cancer: a case-control study in a chinese population.
[So] Source:PLoS One;9(7):e102685, 2014.
[Is] ISSN:1932-6203
[Cp] Country of publication:United States
[La] Language:eng
[Ab] Abstract:BACKGROUND: Although the International Agency for Research on Cancer (IARC) has classified various indoor air pollutants as carcinogenic to humans, few studies evaluated the role of household ventilation in reducing the impact of indoor air pollutants on lung cancer risk. OBJECTIVES: To explore the association between household ventilation and lung cancer. METHODS: A population-based case-control study was conducted in a Chinese population from 2003 to 2010. Epidemiologic and household ventilation data were collected using a standardized questionnaire. Unconditional logistic regression was employed to estimate adjusted odds ratios (ORadj) and their 95% confidence intervals (CI). RESULTS: Among 1,424 lung cancer cases and 4,543 healthy controls, inverse associations were observed for good ventilation in the kitchen (ORadj = 0.86, 95% CI: 0.75, 0.98), bedroom (ORadj = 0.90, 95% CI: 0.79, 1.03), and both kitchen and bedroom (ORadj = 0.87, 95% CI: 0.75, 1.00). Stratified analyses showed lung cancer inversely associated with good ventilation among active smokers (ORadj = 0.85, 95% CI: 0.72, 1.00), secondhand smokers at home (ORadj = 0.77, 95% CI: 0.63, 0.94), and those exposed to high-temperature cooking oil fumes (ORadj = 0.82, 95% CI: 0.68, 0.99). Additive interactions were found between household ventilation and secondhand smoke at home as well as number of household pollutant sources. CONCLUSIONS: A protective association was observed between good ventilation of households and lung cancer, most likely through the reduction of exposure to indoor air pollutants, indicating ventilation may serve as one of the preventive measures for lung cancer, in addition to tobacco cessation.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1407
[Js] Journal subset:IM
[St] Status:In-Data-Review
[do] DOI:10.1371/journal.pone.0102685

  7 / 258326 MEDLINE  
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[PMID]: 25019158
[Au] Autor:Zhang Y; Peng L; Kan H; Xu J; Chen R; Liu Y; Wang W
[Ad] Address:Department of Epidemiology, School of Public Health, and Key Laboratory of Public Health Safety (Ministry of Education), Fudan University, Shanghai, China....
[Ti] Title:Effects of meteorological factors on daily hospital admissions for asthma in adults: a time-series analysis.
[So] Source:PLoS One;9(7):e102475, 2014.
[Is] ISSN:1932-6203
[Cp] Country of publication:United States
[La] Language:eng
[Ab] Abstract:BACKGROUND: There is limited evidence for the impacts of meteorological changes on asthma hospital admissions in adults in Shanghai, China. OBJECTIVES: To quantitatively evaluate the short-term effects of daily mean temperature on asthma hospital admissions. METHODS: Daily hospital admissions for asthma and daily mean temperatures between January 2005 and December 2012 were analyzed. After controlling for secular and seasonal trends, weather, air pollution and other confounding factors, a Poisson generalized additive model (GAM) combined with a distributed lag non-linear model were used to explore the associations between temperature and hospital admissions for asthma. RESULTS: During the study periods, there were 15,678 hospital admissions for asthma by residents of Shanghai, an average 5.6 per day. Pearson correlation analysis found a significant negative correlation (r = -0.174, P<0.001) between asthma hospitalizations and daily mean temperature (DMT). The DMT effect on asthma increased below the median DMT, with lower temperatures associated with a higher risk of hospital admission for asthma. Generally, the cold effect appeared to be relatively acute, with duration lasting several weeks, while the hot effect was short-term. The relative risk of asthma hospital admissions associated with cold temperature (the 25th percentile of temperature relative to the median temperature) was 1.20 (95% confidence interval [CI], 1.01∼1.41) at lag0-14. However, warmer temperatures were not associated with asthma hospital admissions. CONCLUSIONS: Cold temperatures may trigger asthmatic attacks. Effective strategies are needed to protect populations at risk from the effects of cold.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1407
[Js] Journal subset:IM
[St] Status:In-Data-Review
[do] DOI:10.1371/journal.pone.0102475

  8 / 258326 MEDLINE  
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[PMID]: 25024144
[Au] Autor:Bertsch A
[Ad] Address:Fachbereich Biologie der Philipps Universitt, Karl von Frisch Strae, D-3550, Marburg, Federal Republic of Germany.
[Ti] Title:Nectar production of Epilobium angustifolium L. at different air humidities; nectar sugar in individual flowers and the optimal foraging theory.
[So] Source:Oecologia;59(1):40-8, 1983 Aug.
[Is] ISSN:0029-8549
[Cp] Country of publication:Germany
[La] Language:eng
[Ab] Abstract:The nectar production of Epilobium angustifolium L. was investigated at 20C and 50%, 78% and 94% ambient humidity in the climatic test chamber. By means of permanent pipettes, freshly produced nectar was sucked off immediately after secretion, and nectar samples were also taken at 10-h and 48-h intervals to investigate the postsecretory influence of ambient humidity. Volume and sugar concentration of samples from individual flowers were measured and the sugar contained was calculated. The rate of sugar production remains constant for all ambient humidities and extraction intervals investigated; the mean value for all 180 samples is 1.55 mg sucrose equivalents/24h. Sugar concentration of secretion nectar is linearly dependent on ambient humidity over the range investigated, and nectar volume and sugar concentration change according to the theoretically expected curve for solutions with a sugar content of 1.55 mg sucrose. The response of secretion nectar to steplike changes in ambient humidity was investigated and the transient function described. The nectaries respond immediately to changes in ambient humidity. The consequences of the results for nectar production and nectar reward of individual flowers in the field and for the optimal foraging of pollinators are discussed. Discussion concentrates particularly on the following questions: what influence the variability of nectar reward in individual flowers may have on flower-visiting bumble-bees; whether these animals have the sensory capabilities to measure sugar exactly; and whether the water relations of pollinators may also influence foraging behaviour.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1407
[St] Status:In-Data-Review
[do] DOI:10.1007/BF00388069

  9 / 258326 MEDLINE  
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[PMID]: 25023316
[Au] Autor:Aquila M; Benedusi M; Fasoli A; Rispoli G
[Ad] Address:Department of Bioscience, University of Milan, Milan, Italy.
[Ti] Title:Pressure-Polished Borosilicate Pipettes are "Universal Sealer" Yielding Low Access Resistance and Efficient Intracellular Perfusion.
[So] Source:Methods Mol Biol;1183:279-89, 2014.
[Is] ISSN:1940-6029
[Cp] Country of publication:United States
[La] Language:eng
[Ab] Abstract:Whole-cell recording is the most widely used configuration of the patch recording technique, mainly because it allows to manipulate the intracellular environment while recording membrane current. However, the patch pipette tapered shank and the small tip opening give high access resistances and preclude efficient exchange between pipette solution and cell cytosol. Independently by the recording configuration, another problem of this technique is to gain consistently tight seals.Here we describe a method to enlarge the pipette shank without affecting the tip opening diameter, through the calibrated combination of heat and air pressure, with a custom-made inexpensive setup. These pressure-polished pipettes give small access resistances and allow for the accommodation of pulled quartz or plastic perfusion tubes very close to the pipette tip (to deliver exogenous molecules into the cytosol with a controlled timing). Finally, we describe a method to consistently attain seals with pipettes made from just one glass type, for a wide variety of cell types, isolated from different amphibian, reptilian, fish, and mammalian tissues, and on artificial membranes composed of many different lipid mixtures.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1407
[Js] Journal subset:IM
[St] Status:In-Data-Review
[do] DOI:10.1007/978-1-4939-1096-0_18

  10 / 258326 MEDLINE  
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[PMID]: 24978595
[Au] Autor:Lee M; Yim C; Jeon S
[Ad] Address:Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH) , San 31, Hyoja-dong, Nam-gu, Pohang, Korea.
[Ti] Title:Characterization of underwater stability of superhydrophobic surfaces using quartz crystal microresonators.
[So] Source:Langmuir;30(27):7931-5, 2014 Jul 15.
[Is] ISSN:1520-5827
[Cp] Country of publication:United States
[La] Language:eng
[Ab] Abstract:We synthesized porous aluminum oxide nanostructures directly on a quartz crystal microresonator and investigated the properties of superhydrophobic surfaces, including the surface wettability, water permeation, and underwater superhydrophobic stability. After increasing the pore diameter to 80 nm (AAO80), a gold film was deposited onto the AAO80 membrane, and the pore entrance size was reduced to 30 nm (AAO30). The surfaces of the AAO80 and AAO30 were made to be hydrophobic through chemical modification by incubation with octadecanethiol (ODT) or octadecyltrichlorosilane (OTS), which produced three different types of superhydrophobic surfaces on quartz microresonators: OTS-modified AAO80 (OTS-AAO80), ODT-modified AAO30 (ODT-AAO30), and ODT-OTS-modified AAO30 (TS-AAO30). The loading of a water droplet onto a microresonator or the immersion of a resonator into water induced changes in the resonance frequency that corresponded to the water permeation into the nanopores. TS-AAO30 exhibited the best performance, with a low degree of water permeation, and a high stability. These features were attributed to the presence of sealed air pockets and the narrow pore entrance diameter.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1407
[Js] Journal subset:IM
[St] Status:In-Data-Review
[do] DOI:10.1021/la5006665


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